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Goodyear Polyglas Tires

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Old Nov 3, 2012 | 07:01 AM
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Default Goodyear Polyglas Tires

Did any Corvette come from the factory with G70-15 raised white letter Goodyear Polyglas tires?

I have two that I aquired years ago that are perfect condition and they need to find a home, but I don't know what kind of car they might go on.
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Old Nov 3, 2012 | 08:49 AM
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Can you post a photo of one (or them)?
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Old Nov 3, 2012 | 12:03 PM
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Originally Posted by MAP73
Did any Corvette come from the factory with G70-15 raised white letter Goodyear Polyglas tires?
No. 68-72 Corvettes all came with F70-15 tires. The Goodyear Polyglas were used, but only in the F70 size.

In 73, when Chevrolet went to radials, they switched from a F70x15 to a GR70x15.

I don't believe that the G70x15 was an OEM size tire on any car, no mater what make or year. I say this because I have a set of four 1972 vintage G70x15, Goodyear Polyglas GT's, that are in pretty good shape.

They've been laying around the shop for 30+ years. I'm not aware of any OEM application for them?
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Old Nov 3, 2012 | 02:08 PM
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Original window sticker and paperwork for my 75 says:

GR70-15/B STL BELTED RADIAL W/L
Goodyear Steelguard Radial Tires with raised white letters

I seem to remember that polyglass was available in the early 70s.
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Old Nov 4, 2012 | 10:24 AM
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Originally Posted by gbvette62
...No. 68-72 Corvettes all came with F70-15 tires. The Goodyear Polyglas were used, but only in the F70 size...

F70 series, yes; G series, no.
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Old Nov 4, 2012 | 12:58 PM
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Goodyear Polyglas tires were never used in production on any Corvette... If it says "POLYGLAS," it's not for a Corvette.

As mentioned, original Corvette tires during the 1968-1972 period were nylon belted tires sized F70-15 available from Goodyear, Firestone, and occasionally U.S. Royal.

In 1973, Corvette tires were switched to radials sized GR70-15 and continued in that size until the switch to the p metric sizing was introduced.

Regards,

Stan Falenski
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Old Nov 4, 2012 | 01:24 PM
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Early 70's Goodyear RWL tires read "WIDE TREAD" on them. There is nothing that reads "Polyglas"
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Old Nov 4, 2012 | 04:24 PM
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The Goodyear tires installed on early C3's were the Speedway line...in F70-15 as already said. They were bias ply...no belts.
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